practice makes perfect

[Jason Malabute]

So Brandon recommends that we practice evaluating one deal per day so when it gets closer to making a purchase you will be more comfortable evaluating purchase. I will not make a purchase until first quarter 2019.

I'm still in market research stage. I haven't narrowed it down to one market yet. Therefore, I am not too familiar with the "numbers" (ARV, rehab cost, and closing cost etc) of a market yet. I dont bug a Real estate agent too much when I haven't determined a market yet.

How do I make sure Im practicing evaluating practice deals correctly ? How do I know my ARV, rehab cost, and closing cost (etc.) are at least reasonable? Because I can make up a rehab cost and ARV but what is the point of doing that?